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Nexperia USA Inc. PBRN123YT-QR
- Part No.:
- PBRN123YT-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single, Pre-Biased Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PBRN123YT-QR.pdf
- Description:
- TRANS PREBIAS NPN 40V TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,497
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Product details
Overview
PBRN123YT-QR from Nexperia is a 40 V, 600 mA NPN resistor-equipped transistor (RET) in SOT23 package, designed as a single-chip replacement for base-biased BJT + two external resistors in switching applications. It integrates R1 = 2.2 kΩ and R2 = 10 kΩ bias network, achieves VCEsat ≤ 750 mV at IC = 600 mA, and is AEC-Q101 qualified for automotive load switching.
For engineers reviewing the PBRN123YT-QR datasheet, PBRN123YT-QR pinout, PBRN123YT-QR application, or PBRN123YT-QR equivalent, this device serves as a space- and cost-optimized discrete switch for medium-current digital control in constrained PCB layouts with thermal derating requirements up to 150 °C junction temperature.
Technical Context
This NPN PB RET operates as a digitally controlled switch with integrated base bias network-R1 connects input to base, R2 shunts base to emitter-enabling direct logic-level drive without external pull-down. Its low VCEsat and ±10 % R2/R1 ratio (4.1–5.0) ensure stable saturation across process and temperature.
The device targets automotive-grade reliability: absolute maximum ratings include VCBO = 40 V, VEBO = 5 V, and Tj = 150 °C; thermal resistance Rth(j-a) is 500 K/W on standard FR4, dropping to 105 K/W to solder point for improved pulsed-current handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 40 V - Maximum collector-emitter voltage before breakdown; defines safe operating range for 12 V/24 V automotive loads. |
| IO | 600 mA - Continuous DC output current capability; supports medium-current peripheral drivers like LED arrays or small solenoids. |
| VCEsat | ≤ 720 mV at IC = 600 mA - Low saturation voltage minimizes conduction loss and self-heating in high-duty-cycle switching. |
| R1 | 2.2 kΩ ±30 % - Integrated base-input resistor sets input current sensitivity; enables direct 3.3 V/5 V GPIO drive. |
| R2/R1 | 4.55 (typ), 4.1–5.0 - Precise internal resistor ratio ensures consistent base current division and reliable turn-on margin. |
| hFE | 25–35 at IC = 50 mA - DC current gain sufficient for saturated switching with low base drive overhead. |
| Tj max | 150 °C - Junction temperature limit enabling operation in under-hood automotive environments. |
Pinout & Package
Package: SOT23 (TO-236AB), surface-mount plastic package; 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch; optimized for reflow and wave soldering per IPC-7351B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I) | Input (base node) | Logic-level signal entry point; connected internally to R1; accepts 0.4–1.4 V VI(on) for reliable turn-on. |
| 2 (GND) | Ground (emitter node) | Emitting terminal tied to system ground; R2 connects internally between Pin 1 and Pin 2 for active pull-down. |
| 3 (O) | Output (collector node) | Switched high-side load connection; handles up to 600 mA continuous current with minimal VCEsat rise. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated bias network | Eliminates two external resistors, reducing BOM count and PCB footprint by >3 mm² in typical implementations. |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD testing-no additional qualification needed for Tier-1 designs. |
| Low VCEsat at high current | 720 mV @ 600 mA enables <100 mW conduction loss, easing thermal management on compact 2-layer FR4 boards. |
| ±10 % R2/R1 tolerance | Ensures predictable base current ratio across lot and temperature, improving production yield in safety-critical switching. |
| Thermal resistance to solder point | 105 K/W allows 3× higher pulsed current capability vs. ambient-limited rating-critical for intermittent load activation. |
Applications
| Automotive Interior Lighting | Industrial Sensor Interface |
|---|---|
Use Scenario: Driving 12 V LED strips in door panels and footwells with PWM dimming. IC Role / Device Role / Timing Role: Medium-current NPN switch controlling LED anode path; responds to MCU GPIO with <1 µs turn-on delay. Use Value: Integrated R1/R2 eliminates layout-sensitive resistor placement, reducing EMI risk and assembly defects in high-volume harness assemblies. |
Use Scenario: Level-shifting and buffering digital signals from 3.3 V microcontrollers to 5 V industrial sensors. IC Role / Device Role / Timing Role: Digital interface translator providing current gain and voltage translation between mixed-voltage subsystems. Use Value: VI(on) of 0.5–1.4 V ensures compatibility with both 3.3 V and 5 V logic families without external level shifters. |
| Automotive HVAC Actuators | Smart Home Relay Drivers |
Use Scenario: Switching 24 V DC motors in blend door actuators with duty-cycled control. IC Role / Device Role / Timing Role: High-reliability load switch interfacing MCU PWM outputs to motor windings via flyback diode protection. Use Value: AEC-Q101 qualification and 150 °C Tj rating support continuous operation in engine bay-adjacent HVAC control modules. |
Use Scenario: Driving electromechanical relays in smart thermostats and lighting hubs using 3.3 V SoC outputs. IC Role / Device Role / Timing Role: Solid-state relay driver replacing discrete BJT + resistors; provides clean, fast turn-off via R2 pull-down. Use Value: VI(off) ≤ 1 V guarantees robust off-state immunity against noise coupling in densely packed IoT PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN resistor-equipped transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS12201LT1G | R1 = 10 kΩ, R2 = 10 kΩ (R2/R1 = 1.0); VCEsat = 1.1 V @ 300 mA; not AEC-Q101 qualified. | Lower current capability and no automotive qualification; suitable only for consumer-grade 3.3 V logic interfaces. | Select when cost is primary and automotive compliance is unnecessary; verify VI(on) margin with 3.3 V drivers. |
| ROHM UMT1N (UMT1N) | R1 = 4.7 kΩ, R2 = 47 kΩ (R2/R1 = 10); VCEsat = 1.0 V @ 500 mA; AEC-Q101 qualified but larger SOT-323 package. | Higher R2/R1 ratio increases turn-off speed but reduces noise immunity; larger footprint limits high-density routing. | Choose when faster switching is prioritized over board area; confirm thermal performance on 2-layer FR4 with 1 cm² collector pad. |
Compared with NSS12201LT1G and UMT1N, PBRN123YT-QR delivers optimal balance of automotive qualification, 600 mA drive, compact SOT23 size, and tight R2/R1 matching-making it the preferred choice for space-constrained, thermally demanding automotive and industrial switching nodes.
Availability
PBRN123YT-QR is available at Aetrix Electronics and suitable for automotive interior lighting, HVAC actuator control, and smart home relay driver applications requiring stable component supply and long-term lifecycle assurance.
Supply support for PBRN123YT-QR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a global semiconductor expert focused on high-volume, high-reliability essential semiconductors-including logic, discretes, MOSFETs, and analog devices-for automotive, industrial, and consumer markets.
PBRN123YT-QR belongs to Nexperia's Performance-Based Resistor-Equipped Transistor (PB RET) product line, engineered to replace discrete BJT-resistor combinations in automotive-grade digital switching applications with guaranteed AEC-Q101 reliability.
FAQ
What is the maximum continuous current PBRN123YT-QR can switch at 85 °C ambient?
At Tamb = 85 °C, the device's power derating curve (Fig. 1) limits Ptot to ~220 mW. With VCEsat ≈ 650 mV at 600 mA, power dissipation is 390 mW-so continuous operation requires heatsinking or reduced current. Derated IO is approximately 420 mA for safe operation without forced cooling on standard FR4.
Can PBRN123YT-QR be used with 1.8 V logic inputs?
No. VI(on) is specified from 0.5 V (min) to 1.4 V (max) at IC = 20 mA, but functional turn-on requires ≥0.6 V input. At 1.8 V, the device will saturate-but the input threshold is not characterized below 0.4 V, and insufficient margin exists for reliable low-VCC operation. Use only with ≥3.3 V logic or add a level-shifter.
Does PBRN123YT-QR require an external flyback diode when driving inductive loads?
Yes. The device has no integrated flyback protection. When switching relays or motors, a Schottky diode (e.g., PMEG3010AEH) must be placed cathode-to-collector, anode-to-ground to clamp inductive kickback and prevent VCEO exceedance during turn-off.
How does the R2/R1 ratio affect switching behavior?
The R2/R1 ratio of 4.55 sets the internal base current divider, determining turn-on sensitivity and turn-off speed. A higher ratio improves noise immunity but slows turn-off; lower ratios increase susceptibility to leakage-induced false turn-on. This fixed 4.55 ratio balances robustness and response time for automotive-grade digital switching.
PBRN123YT-QR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN - Pre-Biased
- Current - Collector (Ic) (Max):
- 600 mA
- Voltage - Collector Emitter Breakdown (Max):
- 40 V
- Resistor - Base (R1):
- 2.2 kOhms
- Resistor - Emitter Base (R2):
- 10 kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 500 @ 600mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 1.15V @ 8mA, 800mA
- Current - Collector Cutoff (Max):
- 500nA
- Frequency - Transition:
- -
- Power - Max:
- 250 mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PBRN123YT-QR FAQ
1.How can I place an order for PBRN123YT-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PBRN123YT-QR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for PBRN123YT-QR reliable?
The price and inventory of PBRN123YT-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBRN123YT-QR is usually 5 days.
3.What payment methods are accepted for PBRN123YT-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBRN123YT-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PBRN123YT-QR?
PBRN123YT-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBRN123YT-QR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for PBRN123YT-QR?
For technical support, including PBRN123YT-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBRN123YT-QR requirements.
6.How does Aetrix verify that PBRN123YT-QR is sourced from the original manufacturer or authorized distributors?
All PBRN123YT-QR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that PBRN123YT-QR meets industry standards.
7.What is the process for return or replacement of PBRN123YT-QR?
All PBRN123YT-QR units undergo pre-shipment inspection (PSI). If there is an issue with PBRN123YT-QR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The PBRN123YT-QR part is unused and in its original packaging.
Return procedure for PBRN123YT-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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